Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 11, 2015. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2344 | S10 | E71 | 01 | 0030 | Alpha | May 17, 2015 | May 24, 2015 | Jun 7, 2015 |
| № 2343 | N10 | E39 | 02 | 0020 | Beta | May 15, 2015 | May 22, 2015 | Jun 4, 2015 |
| № 2342 | N18 | E48 | 04 | 0030 | Beta | May 16, 2015 | May 23, 2015 | Jun 5, 2015 |
| № 2341 | S19 | E33 | 01 | 0080 | Alpha | May 15, 2015 | May 21, 2015 | Jun 4, 2015 |
| № 2340 | S08 | E26 | 03 | 0020 | Beta | May 14, 2015 | May 21, 2015 | Jun 3, 2015 |
| № 2339 | N13 | E08 | 35 | 0820 | Beta-Gamma | May 13, 2015 | May 19, 2015 | Jun 2, 2015 |
| № 2337 | S16 | W37 | 04 | 0030 | Beta | May 9, 2015 | May 16, 2015 | May 30, 2015 |
| № 2335 | S15 | W59 | 04 | 0030 | Beta | May 8, 2015 | May 14, 2015 | May 28, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to May 2015. The gray background is the average SSN index.
